Informations sharing in meetings or conference callsare often done by displaying the information on a shareddisplay, e.g. a projected or shared display, or a shared surfaceas a table. The amount of information on the shared surfacemay increase, and the clutter makes the relevant informationhidden or hard to find. One challenge for current systems is tofilter out the information without interest. Another challenge isadding information. For most current system, as informationis added, it distracts the other participants as parts of thedisplay is obstructed, or activity elsewhere on the display drawsundesired activity. In this paper, we describe a novel systemthat fixes these challenges by filtering out unwanted information,or superimposing information that should not be displayed toeveryone on a private display, thus providing a useful way ofonly working with the information of interest.
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